Cab-mover



G. L. BONHAM.

CAR MOVER.

APPLICATION FILED nov. 4. |918.

1 ,3 1 5, Patented Sept. 9, 1919.

2 SHEETS-SHEET1.

@man

TMICQLUMMA PLANOGRAPH C0.. WASHINGTON. D. c.

2 SHEETS-SHEET 2.

Patented Sept. 9, 1919.

. tinnup G. L. BONHAM.

CAR MOVEH.

APPLICATION min Nov. 4. 1918.

@mi/Immo UNITED sTaTEs PATENT oEEroE.

GUY L. EONHAM, 0E wEs'r HARTFORD, coNNEcTIeiJT. t

Specification of Letters Patent. i Patented Sgpt 95 1919;

Application filed November 4, 1918.` Serial No. 261,097. j

VState of Connecticut, have invented anew and useful Cairdldover, of which the follow ing is a specifi attimi.

This invention relates to car movers, one of its objects being to provide a device which greatly reduces the power' required to .move a car and which produces a much more extensive movement of the car at each operation than is possible with devices heretofore used.

Car movers have generally utilized prying or shifting members insertible between the wheels and the rails andwhich, because of their nearness to the central lines of gravity through the wheels, have been able to exert very little leverage upon the wheels. Consequently, by reason of the number of men required to move a car and the slow Vspeed at which it has been moved, the shifting Vof a car even fo.` a very short distance has been expensive to an objectionable degree.

An object of the present invention is to provide a mover designed to engage a wheel practically at lthe endof a horizontal radius where it is at the maximum distance from the center of gravity through the wheel and where the maximum leverage through the wheel isobtained, thus materially reducing the power necessary to shift the car and also providing greater clearance between the rail and the point of connection with the wheel so as to allow a longer movement of the op* erating means and a consequent greater movement of the car when shifted.`

ifVith the foregoing and other objects in view which will appear as the description proceeds, the inventionconsists of certain novel details of construction and combinations of parts which will be hereinafter more fully described and pointed out in the claims, it being understood that various changes may be made in the construction and arrangement of parts without departing from the spirit or sacrificing any of the advantages of the invention as set forth inthe appended claims.

In the accompanying dr. wings the preferred forms of the invention have been shown.

In said drawingsj Figure 1 is a vertical tansverse section through the device, the head being shown in elevationand therelative positions of the railand wheel being` also illustrated."

Fig. 2 is a view partly in side elevation and partly in section, showing the device in use.

Fig. `3 is a plan view.

x Fig. Il is a plan view of a modified form of gripping head.

Fig. 5 is an `elevation thereof;

Fig. G is a section on line (i4-6, Fig. 4.

`Referring to the figures by characters of reference, 1"designates a` base adapted to rest on the head of a rail and having depending side lugs 2 whereby lateral displacement ofthe base on the railis prevented. A ball race 3 is provided in the center of the top of the base and the balls A therein support the bottom of a standard having a depending boss 6 surrounded by the balls. A pivot bolt 7 fastens the standard 5 to the base 1.

The standard 5 is hollow and constitutes a guide for a slide 8 which may be shifted longitudinally by any suitable power multiplying means. For example, and as shown in Figs. l and 2, a hollow extension 9 may be formed on the standard and this extension may be formed with spaced fnlcrnm projections 10. A lever 11 projects into the eX- tension and its inner end is connected by a link 12 to the lower end of the slide 8. A socket 13 is formed in the other end of the leverfor the reception of a handle and spaced notches 14 are provided in the lever for reception successively of the projections 10. These notches,as well as the projections, are preferably rounded as shown and, if desired, a rounded projection 15 may be provided adjacentthe socket end of the lever for engagement with a recessed shoulder 16 within the extension 9. Thus it will be seen that when the lever 11 is operated by pressing downwardly upon the outer lend thereof, the projections;` l0 will become successively seated in the notches 14; and the projection l5 will ultimately engage the shoulder 16. Thus the fulcruin points will shift and the speed of movement of the inner end of the lever gradually increased during the downward movement of the outer end of the lever. t

A pivot stud 17 extends upwardly from. the top of the slide 8 and is engaged by a head 18 having arms at the sides thereof, as shown at 19, and recesses adjacentthe inner' sides of the arms, as indicated at 20. Toothed cams 21 are pivotally mounted on the arms and are adapted to swing inwardly toward each other `upon their pivot pins 22 which are parallel and extend longitudinally of the arms. Springs 23 bear againstthe upper ends of the cams for pressing them inwardly.

In using the device described, the base 1 is placed on the rail R and moved therealong until the peripheral portion; of the wheel W projects betweenthe arms 19 and cams 21. The flange WV of the wheel will extend into one of the recesses 20. Obviously when the head 18 is moved upwardly by the mechanism described, the cams will `gripthe sides of the wheel close to the end of its horizontal radius and thrust upwardly upon the wheel so that it will be rotated. This will result in a great reduction of the power required to move the car and increase in the amount of movement resulting from each operation of the device.

The described structure can vof course be used on a wheel at either side of the car and the standard 8 can be rotated under the wheel engaging head 18 until the lever 1l is brought to the most convenient position for actuation.

Instead of providing two flange receiving notches in the head a structure such as shown in Figs. 1l, 5 and G` can be used. This structure includes a block 24 swiveled on the upper end of the slide and having lingers 26. A yoke 27 is pivotally connected to the lingers and is engaged by a pivot stud 28 extending from a head 29. This head has an arm 3() at one side and a flange receiving recess31 adjacent to the arm. A reversible toothed cam 32 is connected to the arm 30 and another similar cam 33 is mounted on one face of the head 29 adjacent the opposite side thereof, both cams being in the same plane. This form of device is adjusted up to the wheel in the manner heretofore describedand the shifting of the wheel is accomplished as pointedout in connection with Figs. 1, 2 and 3. When the mover is placed on the other rail to engage a wheel thereon, the head is swung back with its yoke 27, then swung `relative to the yoke with the stud 28 as a pivot, thereby to invert the head, after which the head is moved back onto the block 24, thereby being supported in a position the reverse of that formerly occupied and with the recess 31 in flange receiving lever and the slide, a head on the slide, andl wheel gripping devices carried by the head.

2. A car mover including a rail engaging base, a standard swiveled thereon, a slide within the standard, a head swiveled on the slide, wheel gripping devices carried by the head, a lever for actuating the slide, and means whereby the leverage is reduced and the speed of movement of the slide is increased during the movement of the slide from its lowest to its elevated position.

` 3. A car mover including a rail engaging base, a standard swiveled thereon, spaced fulcrum projections connected to the stand ard, a slide, a head swiveled on the slide, wheel gripping devices carried by the head, and a lever connected to the slide and movable successively into engagement with the ulcrum projections during the raising and loweringfof the slide.

4. A car mover including a base, a standn ard swiveled thereon, a slide mounted on the standard, a block swiveled on the slide, a head, a yoke hinged to the block, a Swivel connection between the head and yoke, wheel gripping devices carried by the head, and means for raising and lowering the slide.

In testimony that I claim the foregoing `as my own, 'L have hereto affixed my signature in the presence of two witnesses.

GUY L. BON HAM.

\ Vitnesses z H. C. WHITMAN, KATE E. VVmTMAN,

Copies of this patent maybe obtained for ve cents each, by addressing the Commissioner of Patents Washington, D. C. 

